PhpOffice\PhpSpreadsheet\Shared\StringHelper::getIsIconvEnabled()

Complexity

Conditions	11
Paths	6

Size

Total Lines	40
Code Lines	17

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	9
CRAP Score	23.6107

Importance

Changes

0

<?php
    public static function getIsIconvEnabled()
    {
        if (isset(self::$isIconvEnabled)) {
            return self::$isIconvEnabled;
        }

        // Fail if iconv doesn't exist
        if (!function_exists('iconv')) {
            self::$isIconvEnabled = false;

            return false;
        }

        // Sometimes iconv is not working, and e.g. iconv('UTF-8', 'UTF-16LE', 'x') just returns false,
        if (!@iconv('UTF-8', 'UTF-16LE', 'x')) {
            self::$isIconvEnabled = false;

            return false;
        }

        // Sometimes iconv_substr('A', 0, 1, 'UTF-8') just returns false in PHP 5.2.0

42% of this comment could be valid code. Did you maybe forget this after debugging?

        // we cannot use iconv in that case either (http://bugs.php.net/bug.php?id=37773)
        if (!@iconv_substr('A', 0, 1, 'UTF-8')) {
            self::$isIconvEnabled = false;

            return false;
        }

        // CUSTOM: IBM AIX iconv() does not work
        if (defined('PHP_OS') && @stristr(PHP_OS, 'AIX') && defined('ICONV_IMPL') && (@strcasecmp(ICONV_IMPL, 'unknown') == 0) && defined('ICONV_VERSION') && (@strcasecmp(ICONV_VERSION, 'unknown') == 0)) {
            self::$isIconvEnabled = false;

            return false;
        }

        // If we reach here no problems were detected with iconv
        self::$isIconvEnabled = true;

        return true;
    }